Calhoun then analyzed the works, visualizing the punctuation of these novels in a way that put their punctuation use in perspective.

For example, in one chart, Calhoun shows punctuation density, or how many words (on average) an author puts in a row before using a punctuation mark. Hemingway, who favored short, crisp sentences, uses punctuation more densely than Jane Austen, William Faulkner, or Charles Dickens.

Calhoun also breaks down each novel by most-used punctuation mark. Commas and periods tend universally to be the most used marks, but some authors have a fondness for apostrophes (Mark Twain), exclamation points (Lewis Carroll), and semi-colons (William Faulkner).